Cross-Browser and Responsive Testing
A site built and approved on one large laptop screen can hide a broken checkout on a mid-range phone. GullySystem checks layout and behaviour across the browsers and screen widths your own traffic shows, before customers find the gap.
It Worked in the Demo Is Not the Same as It Works
A page reviewed once, on one laptop, in one browser, tells you almost nothing about how it behaves for the visitor on a two-year-old Android phone with a cracked screen protector and patchy signal. Rendering differences between browsers, and layout breakpoints that were never designed for a narrow width, tend to surface exactly where money changes hands — the checkout button, the date picker, the payment form.
What Gets Checked
- Layout and spacing across phone, tablet and desktop widths, not only the three sizes a design file happened to show
- Forms, dropdowns and date pickers, which render and behave differently across browsers more often than plain text does
- Fonts, icons and images that fail to load or fall back badly on an older browser version
- Touch targets sized for a finger rather than a mouse pointer on the same screen
- Print layouts and PDF exports, which are often tested only once and never again after launch
How the Matrix Is Decided
The browser and device list is pulled from your own analytics rather than a standard assumption, then narrowed to what your traffic and your industry actually justify — a business selling mainly through Android handsets in tier-two cities needs a different matrix from one selling to desktop users at large enterprises, and testing both the same way wastes effort on one side or leaves a gap on the other.
A Tuition Centre's Enrolment Portal, as an Example
A tuition centre chain's enrolment form is tested on the older Android phones parents commonly use, where a date-of-birth picker that works cleanly on a new phone can refuse to open at all. The same form is tested on an older desktop browser some school administrators still use behind office firewalls, where a newer input type silently fails to validate.
Frequently asked questions
Which browsers do you test by default?
There is no fixed default — the list comes from your own analytics, agreed with you before testing starts. In practice this usually includes the major desktop and mobile browsers your visitors actually use, in the versions that still appear in meaningful numbers.
How many screen sizes will you check?
Enough to cover common phone, tablet and desktop widths without testing every possible pixel value, since layouts are built around breakpoints rather than exact device dimensions. The specific widths are agreed against your design and your traffic.
Is this the same as mobile app testing?
No. This covers how a website or web application renders inside a mobile browser. Testing a native Android or iOS app — install, permissions, offline behaviour — is a related but separate piece of work, since the failure points are different.
What drives the cost of cross-browser testing?
How many browser and device combinations are in the agreed matrix, how many pages or components are in scope, and whether checks are automated with visual comparison tools or reviewed manually on each combination.
What decides how long cross-browser testing takes?
The size of the matrix and the number of pages being checked. A single landing page across a handful of combinations is quick; a full portal with many templates across a wide matrix takes correspondingly longer.
Can this be automated?
Partly. Layout comparison across browsers can be automated for pages that have settled, catching unintended visual changes on future releases. Judgement calls about whether something looks acceptable on an unusual screen size still benefit from a person looking at it directly.
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